Since 2004, drive-by shootings, IED bombings and point-blank assassinations have claimed some 5,000 lives in Thailand's three restive southernmost provinces that border Malaysia, making the insurgency one of the world’s deadliest.

These are pictures taken in and around Kratie, a town along the Mekong River in northeastern Cambodia. One of Cambodia’s proposed mainstream dams lies not far to the north and is controversial for the impact it could have on the river’s ecosystem.